Like a full on I-just-won-an-Olympic-gold style arms in the air, fist pumping and shouting victory celebration. The first time I saw it, I figured he was just trying to be funny, but I've seen the guy finish 3 more runs since, and it seems to just be his routine.
I figure that the guy is either hilariously cool, or dangerously insane, but I'm not sure which. Should I try to meet him, or avoid at all cost?